1 /* @(#)rpc_msg.h 2.1 88/07/29 4.0 RPCSRC */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user. 9 * 10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 13 * 14 * Sun RPC is provided with no support and without any obligation on the 15 * part of Sun Microsystems, Inc. to assist in its use, correction, 16 * modification or enhancement. 17 * 18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 20 * OR ANY PART THEREOF. 21 * 22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 23 * or profits or other special, indirect and consequential damages, even if 24 * Sun has been advised of the possibility of such damages. 25 * 26 * Sun Microsystems, Inc. 27 * 2550 Garcia Avenue 28 * Mountain View, California 94043 29 */ 30 /* @(#)rpc_msg.h 1.7 86/07/16 SMI */ 31 32 #ifndef _RPC_MSG_H 33 #define _RPC_MSG_H 1 34 35 #include <sys/cdefs.h> 36 37 #include <rpc/xdr.h> 38 #include <rpc/clnt.h> 39 40 /* 41 * rpc_msg.h 42 * rpc message definition 43 * 44 * Copyright (C) 1984, Sun Microsystems, Inc. 45 */ 46 47 #define RPC_MSG_VERSION ((u_long) 2) 48 #define RPC_SERVICE_PORT ((u_short) 2048) 49 50 __BEGIN_DECLS 51 52 /* 53 * Bottom up definition of an rpc message. 54 * NOTE: call and reply use the same overall struct but 55 * different parts of unions within it. 56 */ 57 58 enum msg_type { 59 CALL=0, 60 REPLY=1 61 }; 62 63 enum reply_stat { 64 MSG_ACCEPTED=0, 65 MSG_DENIED=1 66 }; 67 68 enum accept_stat { 69 SUCCESS=0, 70 PROG_UNAVAIL=1, 71 PROG_MISMATCH=2, 72 PROC_UNAVAIL=3, 73 GARBAGE_ARGS=4, 74 SYSTEM_ERR=5 75 }; 76 77 enum reject_stat { 78 RPC_MISMATCH=0, 79 AUTH_ERROR=1 80 }; 81 82 /* 83 * Reply part of an rpc exchange 84 */ 85 86 /* 87 * Reply to an rpc request that was accepted by the server. 88 * Note: there could be an error even though the request was 89 * accepted. 90 */ 91 struct accepted_reply { 92 struct opaque_auth ar_verf; 93 enum accept_stat ar_stat; 94 union { 95 struct { 96 u_long low; 97 u_long high; 98 } AR_versions; 99 struct { 100 caddr_t where; 101 xdrproc_t proc; 102 } AR_results; 103 /* and many other null cases */ 104 } ru; 105 #define ar_results ru.AR_results 106 #define ar_vers ru.AR_versions 107 }; 108 109 /* 110 * Reply to an rpc request that was rejected by the server. 111 */ 112 struct rejected_reply { 113 enum reject_stat rj_stat; 114 union { 115 struct { 116 u_long low; 117 u_long high; 118 } RJ_versions; 119 enum auth_stat RJ_why; /* why authentication did not work */ 120 } ru; 121 #define rj_vers ru.RJ_versions 122 #define rj_why ru.RJ_why 123 }; 124 125 /* 126 * Body of a reply to an rpc request. 127 */ 128 struct reply_body { 129 enum reply_stat rp_stat; 130 union { 131 struct accepted_reply RP_ar; 132 struct rejected_reply RP_dr; 133 } ru; 134 #define rp_acpt ru.RP_ar 135 #define rp_rjct ru.RP_dr 136 }; 137 138 /* 139 * Body of an rpc request call. 140 */ 141 struct call_body { 142 u_long cb_rpcvers; /* must be equal to two */ 143 u_long cb_prog; 144 u_long cb_vers; 145 u_long cb_proc; 146 struct opaque_auth cb_cred; 147 struct opaque_auth cb_verf; /* protocol specific - provided by client */ 148 }; 149 150 /* 151 * The rpc message 152 */ 153 struct rpc_msg { 154 u_long rm_xid; 155 enum msg_type rm_direction; 156 union { 157 struct call_body RM_cmb; 158 struct reply_body RM_rmb; 159 } ru; 160 #define rm_call ru.RM_cmb 161 #define rm_reply ru.RM_rmb 162 }; 163 #define acpted_rply ru.RM_rmb.ru.RP_ar 164 #define rjcted_rply ru.RM_rmb.ru.RP_dr 165 166 167 /* 168 * XDR routine to handle a rpc message. 169 * xdr_callmsg(xdrs, cmsg) 170 * XDR *xdrs; 171 * struct rpc_msg *cmsg; 172 */ 173 extern bool_t xdr_callmsg (XDR *__xdrs, struct rpc_msg *__cmsg) __THROW; 174 libc_hidden_proto(xdr_callmsg) 175 176 /* 177 * XDR routine to pre-serialize the static part of a rpc message. 178 * xdr_callhdr(xdrs, cmsg) 179 * XDR *xdrs; 180 * struct rpc_msg *cmsg; 181 */ 182 extern bool_t xdr_callhdr (XDR *__xdrs, struct rpc_msg *__cmsg) __THROW; 183 libc_hidden_proto(xdr_callhdr) 184 185 /* 186 * XDR routine to handle a rpc reply. 187 * xdr_replymsg(xdrs, rmsg) 188 * XDR *xdrs; 189 * struct rpc_msg *rmsg; 190 */ 191 extern bool_t xdr_replymsg (XDR *__xdrs, struct rpc_msg *__rmsg) __THROW; 192 libc_hidden_proto(xdr_replymsg) 193 194 /* 195 * Fills in the error part of a reply message. 196 * _seterr_reply(msg, error) 197 * struct rpc_msg *msg; 198 * struct rpc_err *error; 199 */ 200 extern void _seterr_reply (struct rpc_msg *__msg, struct rpc_err *__error) 201 __THROW; 202 libc_hidden_proto(_seterr_reply) 203 204 #ifdef __UCLIBC__ 205 /* 206 * XDR routine to handle an accepted rpc reply. 207 * xdr_accepted_reply(xdrs, rej) 208 * XDR *xdrs; 209 * struct accepted_reply *rej; 210 */ 211 extern bool_t xdr_accepted_reply(XDR *__xdrs, struct accepted_reply *__ar); 212 libc_hidden_proto(xdr_accepted_reply) 213 214 /* 215 * XDR routine to handle a rejected rpc reply. 216 * xdr_rejected_reply(xdrs, rej) 217 * XDR *xdrs; 218 * struct rejected_reply *rej; 219 */ 220 extern bool_t xdr_rejected_reply(XDR *__xdrs, struct rejected_reply *__rr); 221 libc_hidden_proto(xdr_rejected_reply) 222 #endif 223 224 __END_DECLS 225 226 #endif /* rpc/rpc_msg.h */ 227